<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .container {
      height: 100vh;
      display: flex;
    }
    .menu {
      width: 200px;
      background-color: #f0f0f0;
    }
    .content {
      flex: 1;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="menu">菜单</div>
    <div class="content">
      <div class="header">header</div>
      <div class="main">main</div>
      <div class="footer">footer</div>
    </div>
  </div>
</body>
</html>